u/Gloomy-Cable-7221

I was working on a commission and the commissioner requested extra background details. We originally agreed on only the horse and a simple background, no tree. They asked me for a willow tree and I expressed that I was not comfortable with drawing it because it is not within my skill set. I felt guilt-tripped and ended up doing it anyways, how much would you guys pay for a commission like this? I originally undercharged and am trying to up the price, due to one of my commission rules being that the art is subject to price changes as time passes. I'm getting really tired of this piece, and working with the commissioner has been a struggle throughout the process. Thank you if you comment and express your opinion <3